excluder

Following standard procedures, the test frames were placed above the queen excluder in each queenright discriminator colony and sandwiched between two frames containing brood of all ages (eggs, larvae, and pupae).

The National Marine Fisheries Service will provide the aquariums with a turtle excluder, a device required on ocean shrimp trawls.

In May 1990, the National Academy of Sciences estimated that as many as 55,000 sea turtles annually drown in American shrimp nets not equipped with turtle excluder device that allow turtles to escape the trawl net.

Origin

Exclude is from Latin excludere ‘shut out’, from ex- ‘out’ and claudere ‘to shut’. The same root gives us, via French, a sluice gate used to shut off water flow, while seclude (Late Middle English) comes from claudere combined with se- ‘apart’.